An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host.
Part of the Andes mountain range, Aconcagua is the second highest of the Seven Summits, behind only Mount Everest in Asia. At 22,837 feet (6,961 meters), not only is it the highest mountain in South America, it is the tallest peak in all of the Americas as well as the Southern and Western Hemispheres.
Mount McKinley (also known as Denali) is the highest mountain on the North American continent. Its summit is 20,237 feet (6,168 meters) above sea level. It is located in the USA, in the state of Alaska.ount Elbrus is the highest mountain on the European continent. Its summit is 18,510 feet (5,642 meters) above sea level. It is located in Russia. Image of Mount Elbrus copyright by iStockPhoto and Giliazov Artur. Australia: Mount Kosciuszko. Mount Kosciuszko is the highest mountain on the Australian continent.